Disposable combined sphygmomanometer cuff and sound chamber

Claim 1

In combination with a stethoscope tube, an air introducing and exhausting means and a pressure indicating means, for the measurement of blood pressure, a disposable combined sphygmomanometer cuff and sound chamber composed of plastic material, the cuff comprising a pair of substantially rectangular pliant sheets overlying one another and secured together along their abutting edges to define an air-tight inflatable bladder, together with an elongated pliable sheet secured to one end of the bladder and adapted to encircle a human limb in overlying relationship to The bladder, means to releaseably secure the cuff around the limb, tubular means secured through one side of the bladder and extending therefrom and adapted to provide communication between the bladder interior and the air introducing and exhausting means and between the bladder and the pressure indicating means, the sound chamber comprising an arcuately shaped member of rigid plastic greater in length in the direction of its curvature, having an arcuate base and end walls, and side walls extending therefrom to define an open cavity, a peripheral lip extending outwardly from the wall edges on a plane parallel with the base, tubular means secured through a side wall of the chamber and extending outwardly therefrom in the direction of the tubular means of the bladder and adapted for engagement with the stethoscope tube to provide some communication with the interior of the chamber, and means to secure the sound chamber centrally of the bottom surface of the bladder with its cavity facing outwardly therefrom, comprising a pliant plastic sling secured along its edges to the ends of the bladder undersurface, the intermediate portions of the sling being lapped under and over the ends of the peripheral lip of the chamber and secured thereto, with air imprisoned within the overlaps to define cushions for the sound chamber.